[msla]

Management shouldn't care about the stack because that isn't management's job. That's the IT Department's job. The scope of the project is management's job, as is the budget; the friction comes when they want to eat elephant on a dormouse budget, which is a good time for an IT staffer to leave if management is intransigent about refusing to understand trade-offs, but it's also the IT Department's job to explain costs and benefits in a way the non-technical can understand.

If the CEO is the lead developer and the head of IT and the CFO what signs all them checks, that's obviously different, and in that case everyone should probably understand everything. Otherwise, ask yourself how deep management gets into the minutiae of washing the toilets.